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IMT-2000 and Beyond IMT--Radio Technologies toward Future Mobile Communications--
IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section INVITED PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
mobile communication, cellular system, IMT-2000, CDMA,
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The field of mobile communications has continued to spread with astonishing speed in recent years. The expansion of mobile communications and the Internet has not only brought changes to communications services but also exerted huge effects on the economy and daily life. IMT-2000, International Mobile Telecommunications, is the next generation system for mobile communications systems currently being implemented. Standardization and development of IMT-2000 are in much progress under international frameworks to start commercial service by around the year 2001. This paper focuses in particular on radio transmission technology, giving an overall view of IMT-2000 standardization and technological status, as well as future technical directions extending beyond IMT-2000.